add renovate coverage for the minio images

General MR

Summary

• Added renovate coverage for the minio images.
• Replaced custom manager regexes with the helm-values built-in where possible.
• Fixed the condition for the operator-sidecar image in the helm.sh/images list.

Relevant logs/screenshots

update-everything

library-subcharts-only

app-image

other-image

minio-image

minio-instance

Linked Issue

Closes #299 (closed)

Upgrade Notices

N/A